Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 580

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-580 A Spencer IA SPNCIAMUDS0  3390 SPENCER MUNICIPAL COMMUNICATION UTILITY 630      

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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